1242102520512 has 448 divisors, whose sum is σ = 4220987443200. Its totient is φ = 350838190080.

The previous prime is 1242102520501. The next prime is 1242102520531. The reversal of 1242102520512 is 2150252012421.

1242102520512 is a `hidden beast` number, since 1 + 2 + 42 + 102 + 5 + 2 + 0 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 831950038 + ... + 831951530.

Almost surely, 2^{1242102520512} is an apocalyptic number.

1242102520512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242102520512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2110493721600).

1242102520512 is an abundant number, since it is smaller than the sum of its proper divisors (2978884922688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242102520512 is a wasteful number, since it uses less digits than its factorization.

1242102520512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 1242102520512 its reverse (2150252012421), we get a palindrome (3392354532933).

The spelling of 1242102520512 in words is "one trillion, two hundred forty-two billion, one hundred two million, five hundred twenty thousand, five hundred twelve".